feat: v15 improve

[diegoitaliait]

Description

Change Type

• Agent update
• Instruction update
• Skill update
• AI policy update (AGENTS.md, copilot-instructions.md)
• Workflow/automation update
• Verification/automation update
• Documentation/configuration only
• Scripts/Utils update
• Other

List of changes

Consumer Impact

• Affected customization assets:
• Backward compatibility notes:
• Rollout or migration notes (if any):

Testing Instructions

Validation Evidence

• Repository-level checks result:
• Stack-specific checks/tests result:
• Security/supply-chain checks result:

Breaking Changes

• This PR contains breaking changes

Checklist

• No secrets/tokens/credentials committed
• Repository artifacts remain in English
• Available repository checks executed as applicable
• Workflow action pins use full SHA with adjacent release/tag reference
• References remain repository-agnostic and reusable